fmcp-project-rules

fmcp-project-rules is a skill for Claude Code, Codex from atezer/FMCP. It costs 75 tokens per session (2,056 once invoked), scanned A, original, MIT.

A shared rulebook for using the F-MCP Bridge with Figma. F-MCP Bridge is a connection that lets an agent work with Figma, and these rules cover design tokens, linked values, library management, setup, and language conventions.

In plain words
What is it for?
Use it as the baseline guidance for any F-MCP design-system or Figma task, including installation, updates, and token-related work.
Why use it?
It keeps Figma operations consistent across related tools and defines how common requests such as setup or updates should be handled.

Skill for Claude CodeCodex

Part of the figma-mcp-bridge plugin — 28 skills, 11 commands, 4 agents, 1 MCP server shipped together

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/atezer/fmcp/fmcp-project-rules
Any agent
npx skills add atezer/FMCP --skill fmcp-project-rules
Clone the repo
git clone --depth 1 https://github.com/atezer/FMCP

Made for: Claude Code, Codex.

Or install figma-mcp-bridge, the plugin that ships this one along with the rest of its 28 skills, 11 commands, 4 agents, 1 MCP server.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for fmcp-project-rules

README.md
[![agentmods](https://agentmods.dev/badge/skills/atezer/fmcp/fmcp-project-rules.svg)](https://agentmods.dev/skills/atezer/fmcp/fmcp-project-rules)
Your own site
<a href="https://agentmods.dev/skills/atezer/fmcp/fmcp-project-rules"><img src="https://agentmods.dev/badge/skills/atezer/fmcp/fmcp-project-rules.svg" alt="Measured on agentmods" height="20"></a>
Per session 75 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,056 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00075 $0.02056
Opus 5 $0.00037 $0.01028
Sonnet 5 $0.00015 $0.00411
Haiku 4.5 $0.00007 $0.00206

Measured 5d ago against content hash abefeb33dfb9, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

fmcp-project-rules scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/fmcp-project-rules/SKILL.md · 116 lines

How it starts

The opening of the file, as written. The whole thing — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.

F-MCP Temel Kurallar

Bu skill, tüm F-MCP skill'leri ve komutları için geçerli olan temel kuralları tanımlar. Her Figma işleminde bu kurallar otomatik olarak uygulanır.

Kullanıcı İstekleri — Otomatik Yanıt

"F-MCP'yi güncelle" / "update" / "güncelle"

Terminal komutu verme. bash scripts/update.sh çalıştır, sonucu bildir:

Güncelleme tamamlandı (vX.Y.Z). Claude'u yeniden başlat ve Figma'da plugin'i kapat-aç.

"F-MCP'yi kur" / "setup" / "kur" / "bunu kur" / GitHub linki verildi

Kullanıcı GitHub linki (github.com/atezer/FMCP) verip "kur" derse veya herhangi bir şekilde kurulum isterse:

  1. Repo zaten clone edilmişse: bash scripts/setup.sh çalıştır
  2. Repo clone edilmemişse: git clone https://github.com/atezer/FMCP.git && cd FMCP && bash scripts/setup.sh
  3. Kullanıcıya sadece sonucu bildir.

Kullanıcıya ASLA terminal komutu söyleme, teknik adım açıklama. Her şeyi sen yap.

Dil

Kullanıcı Türkçe konuşuyor. Tüm dosyalarda Türkçe karakterler (ş, ç, ğ, ö, ü, ı, İ) doğru kullanılmalı.


Token-Only Enforcement (v1.9.8+ MUTLAK)

Kullanıcıya soru/seçenek sunarken (AskUserQuestion options, plan summary, onay metni, fallback dialog):

  • YASAK: ham hex değer (#195e90, #FFFFFF), ham px (375px, 390px), ham pt, ham rem, ham RGB
  • ZORUNLU: token adı (<DS>/primary/default, <DS>/spacing/150, <DS>/text/body/M)
  • ZORUNLU: device preset adı (iPhone 17 (402×874), Pixel 8 Pro (412×917), iPad Pro 11 (834×1194))

Self-check (ZORUNLU): AskUserQuestion çağırmadan önce soru metnini ve tüm option text'lerini kontrol et:

  • Regex match: /#[0-9a-f]{3,8}\b/iVARSA: soru kuralı ihlali, hex'i <DS>/... token adıyla değiştir ve yeniden formüle et
  • Regex match: /\b\d{2,4}\s*px\b/iVARSA: px yerine device preset adı veya <DS>/spacing/... kullan

Gerekçe: Kullanıcı hex/px görmemeli — token adı DS-agnostic, DS değiştiğinde soru otomatik doğru kalır. Hex sunmak "Option A vs B" gibi sahte alternatifler üretir ve kullanıcıyı DS dışına çıkarır.

Read the full file on GitHub · 116 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 116 lines · 75 tokens per session scan A abefeb33dfb9

Subscribe to this mod's changes

fmcp-project-rules is a skill published in the GitHub repository atezer/FMCP (9 stars, last pushed 1mo ago), licensed MIT. It adds 75 tokens to every session and 2,056 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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